Richard J. Campbell (born December 7, 1958) is an American musician best known for his work as a bass guitarist and vocalist for Natalie Cole in the 1980s, and more recently with Three Dog Night, Dave Mason, and America.

Later, Glynnis Talken, Campbell's future wife, joined the band for a television telethon performance for KHSL TV in Chico, California.

Campbell toured with Three Dog Night until 1996, with sporadic performances as bassist and vocalist for the Dave Mason Band and The Edgar Winter Group.

Campbell appears on the CD "Chuck Negron Live in Concert",[2] holding down multiple job titles including bass guitar, vocalist and ProTools engineer.

Campbell contributed bass guitar, vocals, and art direction to America Live in Concert: Wildwood Springs, and makes a cameo appearance on Jeff Larson's CD "Heart of the Valley" in 2009.